Exchange Rate Variance

Hello

In R12 there are some invoices in which Exchange rate variance is coming as Miscellaneous Expenses in accounting class. but account being used as Exchange loss account. Please suggest what is causing this?

Accounting  Class	Accounted DR	Accounted CR
Miscellaneous Expense	71,13,070.42
Miscellaneous Expense	24,626.89
Miscellaneous Expense		88,41,394.26
Miscellaneous Expense	17,27,706.56

Thanks

Dheeraj